java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:46:34,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:46:34,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:46:34,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:46:34,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:46:34,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:46:34,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:46:34,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:46:34,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:46:34,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:46:34,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:46:34,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:46:34,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:46:34,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:46:34,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:46:34,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:46:34,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:46:34,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:46:34,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:46:34,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:46:34,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:46:34,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:46:34,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:46:34,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:46:34,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:46:34,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:46:34,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:46:34,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:46:34,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:46:34,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:46:34,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:46:34,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:46:34,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:46:34,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:46:34,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:46:34,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:46:34,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:46:34,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:46:34,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:46:34,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:46:34,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:46:34,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:46:34,483 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:46:34,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:46:34,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:46:34,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:46:34,485 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:46:34,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:46:34,485 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:46:34,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:46:34,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:46:34,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:46:34,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:46:34,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:46:34,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:46:34,487 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:46:34,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:46:34,487 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:46:34,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:46:34,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:46:34,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:46:34,488 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:46:34,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:46:34,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:46:34,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:46:34,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:46:34,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:46:34,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:46:34,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:46:34,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:46:34,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:46:34,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:46:34,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:46:34,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:46:34,856 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:46:34,856 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:46:34,857 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product33.cil.c [2019-10-07 14:46:34,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d766f1ce4/4e7d0d9d86d3480a9d3715d475f7e501/FLAG5b100aba7 [2019-10-07 14:46:35,549 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:46:35,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product33.cil.c [2019-10-07 14:46:35,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d766f1ce4/4e7d0d9d86d3480a9d3715d475f7e501/FLAG5b100aba7 [2019-10-07 14:46:35,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d766f1ce4/4e7d0d9d86d3480a9d3715d475f7e501 [2019-10-07 14:46:35,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:46:35,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:46:35,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:46:35,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:46:35,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:46:35,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:46:35" (1/1) ... [2019-10-07 14:46:35,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74752006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:35, skipping insertion in model container [2019-10-07 14:46:35,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:46:35" (1/1) ... [2019-10-07 14:46:35,775 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:46:35,864 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:46:36,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:46:36,691 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:46:36,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:46:36,969 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:46:36,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:36 WrapperNode [2019-10-07 14:46:36,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:46:36,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:46:36,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:46:36,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:46:36,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:36" (1/1) ... [2019-10-07 14:46:36,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:36" (1/1) ... [2019-10-07 14:46:37,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:36" (1/1) ... [2019-10-07 14:46:37,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:36" (1/1) ... [2019-10-07 14:46:37,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:36" (1/1) ... [2019-10-07 14:46:37,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:36" (1/1) ... [2019-10-07 14:46:37,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:36" (1/1) ... [2019-10-07 14:46:37,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:46:37,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:46:37,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:46:37,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:46:37,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:46:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:46:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:46:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:46:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:46:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:46:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:46:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 14:46:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:46:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:46:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:46:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:46:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:46:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:46:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:46:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:46:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:46:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:46:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:46:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:46:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:46:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:46:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:46:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:46:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:46:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:46:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:46:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:46:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:46:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:46:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:46:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:46:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:46:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:46:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:46:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:46:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:46:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:46:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:46:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:46:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:46:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:46:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:46:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:46:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:46:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:46:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:46:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-07 14:46:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:46:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:46:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:46:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:46:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:46:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:46:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:46:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:46:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:46:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:46:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:46:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:46:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:46:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:46:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:46:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:46:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:46:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:46:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:46:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:46:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:46:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:46:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:46:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:46:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:46:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:46:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:46:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:46:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:46:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:46:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:46:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:46:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:46:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:46:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:46:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:46:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:46:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:46:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:46:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:46:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:46:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:46:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:46:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:46:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:46:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:46:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:46:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:46:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:46:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:46:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:46:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:46:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:46:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:46:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:46:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:46:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:46:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:46:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:46:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:46:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:46:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:46:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:46:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:46:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:46:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:46:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:46:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:46:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:46:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:46:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:46:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:46:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:46:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:46:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:46:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:46:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:46:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:46:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:46:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:46:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:46:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:46:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:46:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:46:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:46:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:46:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:46:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:46:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:46:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:46:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 14:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:46:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:46:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:46:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:46:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:46:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:46:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:46:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:46:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:46:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:46:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:46:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:46:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:46:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:46:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:46:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:46:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:46:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:46:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:46:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:46:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:46:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:46:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:46:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:46:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:46:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:46:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:46:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:46:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:46:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:46:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:46:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:46:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:46:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:46:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:46:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:46:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:46:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:46:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:46:37,373 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:46:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:46:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:46:37,374 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:46:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:46:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:46:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:46:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:46:37,375 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:46:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:46:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:46:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:46:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:46:37,376 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:46:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:46:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:46:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-07 14:46:37,377 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:46:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:46:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:46:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:46:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:46:37,378 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:46:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:46:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:46:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:46:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:46:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:46:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:46:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:46:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:46:37,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:46:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:46:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:46:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:46:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:46:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:46:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:46:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:46:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:46:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:46:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:46:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:46:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:46:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:46:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:46:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:46:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:46:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:46:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:46:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:46:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:46:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:46:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:46:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:46:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:46:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:46:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:46:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:46:37,386 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:46:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:46:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:46:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:46:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:46:37,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:46:42,239 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:46:42,239 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:46:42,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:46:42 BoogieIcfgContainer [2019-10-07 14:46:42,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:46:42,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:46:42,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:46:42,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:46:42,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:46:35" (1/3) ... [2019-10-07 14:46:42,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a739360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:46:42, skipping insertion in model container [2019-10-07 14:46:42,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:46:36" (2/3) ... [2019-10-07 14:46:42,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a739360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:46:42, skipping insertion in model container [2019-10-07 14:46:42,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:46:42" (3/3) ... [2019-10-07 14:46:42,250 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product33.cil.c [2019-10-07 14:46:42,260 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:46:42,270 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:46:42,282 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:46:42,312 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:46:42,312 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:46:42,312 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:46:42,313 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:46:42,313 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:46:42,313 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:46:42,313 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:46:42,313 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:46:42,343 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2019-10-07 14:46:42,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 14:46:42,364 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:46:42,365 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:46:42,368 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:46:42,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:46:42,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1343517720, now seen corresponding path program 1 times [2019-10-07 14:46:42,384 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:46:42,384 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:46:42,385 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:46:42,385 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:46:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:46:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:46:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:46:43,110 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:46:43,110 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:46:43,111 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:46:43,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:46:43,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:46:43,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:46:43,134 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 2 states. [2019-10-07 14:46:43,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:46:43,251 INFO L93 Difference]: Finished difference Result 669 states and 793 transitions. [2019-10-07 14:46:43,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:46:43,255 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-07 14:46:43,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:46:43,294 INFO L225 Difference]: With dead ends: 669 [2019-10-07 14:46:43,294 INFO L226 Difference]: Without dead ends: 413 [2019-10-07 14:46:43,306 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:46:43,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-07 14:46:43,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2019-10-07 14:46:43,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-07 14:46:43,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 488 transitions. [2019-10-07 14:46:43,406 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 488 transitions. Word has length 125 [2019-10-07 14:46:43,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:46:43,408 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 488 transitions. [2019-10-07 14:46:43,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:46:43,408 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 488 transitions. [2019-10-07 14:46:43,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 14:46:43,414 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:46:43,414 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:46:43,414 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:46:43,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:46:43,415 INFO L82 PathProgramCache]: Analyzing trace with hash 880201506, now seen corresponding path program 1 times [2019-10-07 14:46:43,415 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:46:43,415 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:46:43,415 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:46:43,416 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:46:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:46:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:46:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:46:43,613 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:46:43,613 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:46:43,614 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:46:43,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:46:43,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:46:43,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:46:43,617 INFO L87 Difference]: Start difference. First operand 413 states and 488 transitions. Second operand 3 states. [2019-10-07 14:46:43,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:46:43,661 INFO L93 Difference]: Finished difference Result 654 states and 764 transitions. [2019-10-07 14:46:43,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:46:43,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-07 14:46:43,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:46:43,666 INFO L225 Difference]: With dead ends: 654 [2019-10-07 14:46:43,666 INFO L226 Difference]: Without dead ends: 415 [2019-10-07 14:46:43,668 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:46:43,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-07 14:46:43,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2019-10-07 14:46:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-07 14:46:43,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 490 transitions. [2019-10-07 14:46:43,703 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 490 transitions. Word has length 126 [2019-10-07 14:46:43,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:46:43,704 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 490 transitions. [2019-10-07 14:46:43,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:46:43,704 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 490 transitions. [2019-10-07 14:46:43,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 14:46:43,708 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:46:43,708 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:46:43,709 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:46:43,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:46:43,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1655831608, now seen corresponding path program 1 times [2019-10-07 14:46:43,710 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:46:43,710 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:46:43,710 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:46:43,710 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:46:43,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:46:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:46:43,937 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:46:43,937 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:46:43,938 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:46:43,938 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:46:43,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:46:43,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:46:43,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:46:43,941 INFO L87 Difference]: Start difference. First operand 415 states and 490 transitions. Second operand 3 states. [2019-10-07 14:46:44,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:46:44,002 INFO L93 Difference]: Finished difference Result 814 states and 990 transitions. [2019-10-07 14:46:44,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:46:44,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-07 14:46:44,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:46:44,007 INFO L225 Difference]: With dead ends: 814 [2019-10-07 14:46:44,007 INFO L226 Difference]: Without dead ends: 457 [2019-10-07 14:46:44,008 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:46:44,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-10-07 14:46:44,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2019-10-07 14:46:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2019-10-07 14:46:44,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 561 transitions. [2019-10-07 14:46:44,046 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 561 transitions. Word has length 138 [2019-10-07 14:46:44,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:46:44,047 INFO L462 AbstractCegarLoop]: Abstraction has 456 states and 561 transitions. [2019-10-07 14:46:44,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:46:44,047 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 561 transitions. [2019-10-07 14:46:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-07 14:46:44,050 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:46:44,051 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:46:44,051 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:46:44,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:46:44,052 INFO L82 PathProgramCache]: Analyzing trace with hash -110926911, now seen corresponding path program 1 times [2019-10-07 14:46:44,052 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:46:44,052 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:46:44,053 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:46:44,053 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:46:44,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:46:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:46:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 14:46:45,590 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:46:45,590 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:46:45,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:46:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:46:46,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 2659 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:46:46,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:46:46,366 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:46:46,367 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:46:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:46:46,628 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:46:46,660 INFO L162 IcfgInterpreter]: Started Sifa with 128 locations of interest [2019-10-07 14:46:46,660 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:46:46,667 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:46:46,675 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:46:46,676 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:47:49,950 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 689 [2019-10-07 14:47:54,080 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 316 DAG size of output: 257 [2019-10-07 14:47:54,486 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 730 [2019-10-07 14:47:54,839 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 730 [2019-10-07 14:47:55,171 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 730 [2019-10-07 14:47:55,344 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2019-10-07 14:47:56,087 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:47:56,765 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:47:57,411 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:47:57,586 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2019-10-07 14:47:58,236 WARN L191 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:47:59,552 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1031 DAG size of output: 1029 [2019-10-07 14:48:00,185 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:48:00,356 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2019-10-07 14:48:00,956 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:48:01,600 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:48:02,196 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:48:02,316 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2019-10-07 14:48:02,928 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:48:02,955 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 562 for LOIs [2019-10-07 14:48:03,318 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 655 [2019-10-07 14:48:03,423 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 655 [2019-10-07 14:48:03,566 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2019-10-07 14:48:04,056 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 954 [2019-10-07 14:48:04,057 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1074 for LOIs [2019-10-07 14:48:04,644 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:05,251 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:05,464 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:06,354 WARN L191 SmtUtils]: Spent 888.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:06,955 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:07,557 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:07,782 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:08,640 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:09,330 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:09,922 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:10,232 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:11,099 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:12,184 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1223 DAG size of output: 1074 [2019-10-07 14:48:12,770 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:13,026 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:13,891 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:14,504 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:15,112 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:15,327 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:16,188 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:16,782 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:17,373 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:17,584 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:18,461 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:19,061 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:19,651 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:19,882 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:20,744 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:21,341 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:21,935 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:22,141 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:23,018 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:23,611 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:24,201 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:24,406 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:25,276 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:25,873 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:26,464 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:26,670 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:27,531 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:28,138 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:28,736 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:28,944 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:29,825 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:30,424 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:31,027 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:31,238 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:32,117 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:32,720 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:33,322 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1074 [2019-10-07 14:48:33,528 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:34,419 WARN L191 SmtUtils]: Spent 888.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:35,385 WARN L191 SmtUtils]: Spent 914.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:36,259 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:36,482 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:37,355 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:39,165 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1223 DAG size of output: 1221 [2019-10-07 14:48:40,042 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:40,266 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:41,140 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:42,004 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:42,877 WARN L191 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:43,084 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:48:43,945 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:48:44,858 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1223 [2019-10-07 14:48:45,735 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1223 [2019-10-07 14:48:45,957 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2019-10-07 14:48:46,850 WARN L191 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:48:47,757 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:48:48,644 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:48:48,862 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2019-10-07 14:48:49,746 WARN L191 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:48:51,344 WARN L191 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 1227 DAG size of output: 1223 [2019-10-07 14:48:52,250 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 1223 [2019-10-07 14:48:52,465 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2019-10-07 14:48:53,363 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:48:55,061 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 1223 [2019-10-07 14:48:55,963 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1223 [2019-10-07 14:48:56,187 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2019-10-07 14:48:57,092 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:48:58,001 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:48:58,905 WARN L191 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:48:59,133 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2019-10-07 14:49:00,036 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:49:01,705 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 1223 DAG size of output: 1221 [2019-10-07 14:49:02,593 WARN L191 SmtUtils]: Spent 884.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:02,825 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:49:03,718 WARN L191 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:06,024 WARN L191 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 1223 DAG size of output: 1221 [2019-10-07 14:49:06,918 WARN L191 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:07,168 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:49:08,057 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:08,959 WARN L191 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:09,849 WARN L191 SmtUtils]: Spent 886.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:10,060 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:49:10,949 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:13,858 WARN L191 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 1223 DAG size of output: 1221 [2019-10-07 14:49:14,767 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:14,988 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:49:15,880 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:17,544 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1223 DAG size of output: 1221 [2019-10-07 14:49:18,444 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:18,666 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:49:19,569 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:20,470 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:21,365 WARN L191 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:21,580 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 596 [2019-10-07 14:49:22,491 WARN L191 SmtUtils]: Spent 908.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:49:23,433 WARN L191 SmtUtils]: Spent 912.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:49:24,350 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:49:24,577 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2019-10-07 14:49:25,486 WARN L191 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:49:27,159 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 1227 DAG size of output: 1225 [2019-10-07 14:49:28,078 WARN L191 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:49:28,308 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2019-10-07 14:49:29,221 WARN L191 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:49:30,856 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1227 DAG size of output: 1225 [2019-10-07 14:49:31,780 WARN L191 SmtUtils]: Spent 919.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:49:31,997 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2019-10-07 14:49:32,919 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:49:34,469 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1227 DAG size of output: 1223 [2019-10-07 14:49:35,376 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 1223 [2019-10-07 14:49:35,623 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2019-10-07 14:49:36,521 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:49:38,036 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1229 DAG size of output: 1225 [2019-10-07 14:49:38,935 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1225 [2019-10-07 14:49:39,156 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 599 [2019-10-07 14:49:40,051 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1227 [2019-10-07 14:49:40,307 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:49:40,309 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:49:40,315 INFO L168 Benchmark]: Toolchain (without parser) took 184560.50 ms. Allocated memory was 136.8 MB in the beginning and 1.0 GB in the end (delta: 871.4 MB). Free memory was 99.1 MB in the beginning and 551.3 MB in the end (delta: -452.3 MB). Peak memory consumption was 419.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:49:40,316 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:49:40,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1212.71 ms. Allocated memory was 136.8 MB in the beginning and 202.9 MB in the end (delta: 66.1 MB). Free memory was 98.8 MB in the beginning and 132.7 MB in the end (delta: -33.8 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:49:40,317 INFO L168 Benchmark]: Boogie Preprocessor took 256.41 ms. Allocated memory is still 202.9 MB. Free memory was 132.7 MB in the beginning and 123.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:49:40,318 INFO L168 Benchmark]: RCFGBuilder took 5013.15 ms. Allocated memory was 202.9 MB in the beginning and 308.8 MB in the end (delta: 105.9 MB). Free memory was 123.8 MB in the beginning and 107.5 MB in the end (delta: 16.2 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:49:40,319 INFO L168 Benchmark]: TraceAbstraction took 178070.91 ms. Allocated memory was 308.8 MB in the beginning and 1.0 GB in the end (delta: 699.4 MB). Free memory was 107.5 MB in the beginning and 551.3 MB in the end (delta: -443.8 MB). Peak memory consumption was 255.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:49:40,322 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1212.71 ms. Allocated memory was 136.8 MB in the beginning and 202.9 MB in the end (delta: 66.1 MB). Free memory was 98.8 MB in the beginning and 132.7 MB in the end (delta: -33.8 MB). Peak memory consumption was 37.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 256.41 ms. Allocated memory is still 202.9 MB. Free memory was 132.7 MB in the beginning and 123.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5013.15 ms. Allocated memory was 202.9 MB in the beginning and 308.8 MB in the end (delta: 105.9 MB). Free memory was 123.8 MB in the beginning and 107.5 MB in the end (delta: 16.2 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 178070.91 ms. Allocated memory was 308.8 MB in the beginning and 1.0 GB in the end (delta: 699.4 MB). Free memory was 107.5 MB in the beginning and 551.3 MB in the end (delta: -443.8 MB). Peak memory consumption was 255.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...